package com.itheima.service;  
 2  
 3 import com.domain.Book;  
 4 /**  
 5 * @author JXY  
 6 * @description 针对表【tb_book】的数据库操作Service  
 7 * @createDate 2024-12-10 14:41:22  
 8 */  
 9 public interface BookService {  
 10 public Book findBookById(Integer id);  
 11 } 